Cultivator



Nov. 29, 1927. 1,650,722

- H. PETERSEN cuLTIvAToR Filed May 19, 1925 5 sheets-Sheet l Nov. 29,1927.

4H. PETERSEN CULTIVATOR Filed May 19. 1925 5 sheets-sheath Nov. 29,l92f.'

'LSZZ H. PETERSEN A cuLTIvAToR Filed May 19. 1925 3 sheets-sheet 5{mllmIllllll-mllll LTI Patented Nov. 25k7 i927.

irs sr Aram @epics f HENRY PETERSEN', OF MOUNT UBURN, IOWA.

CULTIVATOR.

Appiianon siert may 19,1925; semaine; 31,306.

This inventioiirelatesy to certain `new and useful iin orovements inoultivators, and more particularly toA that elasspof eu'ltiva;

tors known as combined walking and riding eultivators, and it has foritsobjeets among others to provide an improved `irnpleinent i of thisgeneral type `in which Y provision is made oii the tensioning, landadjustment of, the shovel beams so that they will normally seek theirusualdepth of eiiltivationa but in oase they' meet an obstruction theymust be forced downward-t'urther by eXtra torce applied by the operatoror driver, hut when the eXtra force of theoperator is released they willautomatically return to their former depth of eultivation-- rlChe shovelbeams are spring-supported, the spring tens sion being sueh andthe partsso adjusted that the vweivht` of the shovel beams when fully equippedfor servicewill ot their own `weight just bala-nce the tension ofthesprings Y uiitil'the eye oi the small equalizer pivotally mounted"between the shovel beams with one end connected with the spring; and theeye end playing on the rod strikes the stop at the lower end el' therodwhieh earriesthe shovel beams the required depth ofeiilti'vation. A partot the weight of the beams is now carried by the rods and ai part by thesaidL springs, therebydoubling the force to bringthe springsinto aetionlwhen sorequired by reason of obstructions that may be eaughtbyorgatl'iereduupon the points oil theshovelfs, sii-cli as weeds er thelike. is

j soon as extra foi-ee by the operator is released from said beams thelatter seek their normal level, and they` thus remain at their lusualdepth ot cultivation until again depressed.'

The said'rods serve to protect the spring from yundue or over strain orother liability of injurj7 or abuse. l

I employ an izipper main equalizer wliieh is provided' near `itsouterfend's with teeth or notches to provide forproper orneeessaryadjustment ofthe upper ends ofthe springs to prevent theshovels vfromcrowding in or out from the row oigplants. The" depth of eultiifa'tioiiof the shovels is provided for` hy a lever mounted att'he centre of theupper" balancing equali-Zingflever oiubai'.

rEhe inventionhas for' a further ohjeet to provide a simple andeliieient eonstiuctionwhereby the abovedesired `ends arejaeoomplished.rlhe present improvement is in the Yniatuieot an attachment whioli @anibe readilyV applied `to eultivators already in usey at` sinall `costandi by unskilled; labor. Few parts are employed anch those ot siiehanatiireand i Figure l is a perspective view of a cultivater embodying mypresent improvements;

Figure 2` is a detail in vertiealil section7 with parts inelevationrisliowini; one o ffthe springs and i its rodL and the low-.erequalizer.

Figure 3` yis a detail;` of? the upper eq-iiailizei: and its adjustinglever and its spi-ings and rods, parts beingbreken away; i

Figure e is an enlaiig'edf` view, partly in1 elevation and partlyinfsections-showing the lower equalizer and thev attachment of the rodand springzr.:4

Figure 5 is al side elevation with] parts in Y vertical section. j j j YLike numerals et reference indieate like partsthrougheut the severalviews in which they a ppear.`

Referring to the drawings: 1f designatesY the wheel-s7n which may beolianywellknowii or approvedtype; `2 the frainewliieli like-` wise map7be of any approved form `of oon-` struetion; 3 the supportsy tliere-ot;4@ is the arched axle carrying the wheels and Yits upf per Crossportionl 5 'having bearing/s in the opposite sides ott therainefinusuali manner;

6 is `the tongue' secured to the 'forwardy por l tion ot the trainebvsiiitah'le means as holt/.;

and, at its rear endhavinlirthe eross portions Y ofthe arched axleseco-tred the-nebeneath-w f y.llxteridin'g trom opposite sides of thetongue, being bol-ted thereto at their Lipper ends, .theinelinedmeniheiis 8, the lower ends of wl'iieh, tornrsupports for theterini` I nais `9 of thejioke ll), theoioss` portion of which is securedto the under side o the tongue `near its rear end asby suitable clips orthe. likeQ?, see: Figure l. i f p Mounted `upon he ongiie at al pointnear l the front portion of. the, frame is anialhdg ril,

member 11, which serves as a support for the pivot of the doubletree,not shown, the same being secured rigidly to the tongue as by bolts12-12, (see Fig. 5) and therear member of this is provided with anclongated slot 13 through which works thc end of a segmental member 14pivoted at 15 and having a handle 16, and a plurality of openings 17following the curvature of the uppery face thereof. as seen best inFigure 2. Itis also provided with ay slop pin 4or the like 18, adaptedfor engagement with the adjacent face of the member 11 to limit theforward movement of the segmental f member. 19 isa removable pin or thelike,

adapted for coopeiationvf'ith any one of the holes 17 in the segmentalmember to limit the rearward movement of said member, and is thusadjustable to vary -the depth of cultivation of the earth engagingmembers soon to be described. 2O is a transverse bar carried by thesegmental member, being designed to be moved'vertically up or down byactuation 'of said member,` and this bar may be relatively rigid or itmay be pivotally mounted between its ends, in the present instance shownsubstantially at its midlength at at 2 1, s o as to oscillate in a.vertical plane, as indicated by dotted lines in Figure 3. Vhen thuspivoted this member 20 serves as an equalizer. It is provided at oposite ends upon its upper face with a plura ity of notches or the like22, for a purpose soon tov be described. 23 are the plow beams of anysuitable or well known form of construction. At their forward ends theyare pivotedly mounted upon the cross port-ions 9 of the yoke 10, as seenbest at 24 in Figure 1, so as to have swinging movement thereupon. Any.suitable form of pivotal mounting for these beams'may be resorted to,The earth engaging members 25 may also be of any well known approvedform of construction. Each beam is provided' with aY handle 26 to therear of the axle and disposed Convenient tothe operator from the scat27, which maybe of any approved form and supported in any suitable way.28 is an equalizer or a member pivotedly mounted between its onds,as at29. between the 'side members of the members 25 see Figuresv2, 4 and 5)`it being understood that there is van equalizer between the side membersof each beam. The rear end of each equalizer 28 has an elongated slot30. through which loosely plays a rod 31, the upperend of which is bentupon itself to form a 4hook orlhe like 32, which is adapted to beengaged' with any one of the notches 22 of the cross member 20, beingshiftable from one'to another as occasion may require, for

v a purpose soon to be described. The lower end of the rod 31 isprovided with suitable means, in the presentinsta'nce a nut 33, which isadaptedto engage the under Side of the member 28 to limit the upwardmovement of the rod and to prevent disengagement of the two parts.

The equalizer 28 is provided near its front end with a transverse pin orthe like 34, adapted to engage the under side of the side members of thebeam to limit the movement of the equalizer.

Connected wit-h the member 32 of each rod 31 is a spring 35 (seeforinstance Figures 2 and 5), the lower end of the spring being in thepresent instance formed with an elongated loop 36 which receives the pin3i just described. (See Figures 2, land 5.) y

Each beam is mounted upon a vertical pivot 37 (see Figures 1 and 5), sothat in addition to this vertical movement it is capable of movementlaterally, as will be readily understood.

With the parts constructed and arranged substantially as hereinheforedescribed and shown the operation briefiy stated is as follows:

Normally the parts are so disposed that the cushioning effect of thesprings is the same whether the beams move up or down and in operationthe Shovels or other earth implements normally seek their usual orproper depth of cultivation, the `engagement of the equalizers with theabutments on the lower ends of the rods insuring this effect.

In ease the shovels meet with an obstruction,

such as the collection of weeds or other objects, the operator appliesadditional force by downward pressure upon the handles, when byengagement of the equalizers ywith their abutments the weight isdivided, a part being thrown upon the rod and a part upon the spring,this being brought about by .movement of the equalizer -upon its pivotmore or less.- )Vhcn this obstruction is passed or the plows are clearedof the same, the parts automatically returnto their normal position andthe former depth of cultivation is assured. rl`h`e depth of normalcultivation can be easily regulated greateror less by manipulation ofthefdepth adjusting lever 16 and changing the pin 1f) into the requisitehole in the segmental kmember 14.

The beams are prevented from undue lateral movement iu either direction,such as in case of crowding, by adjustment of the loops 32 into therequisite notch 22 of the member 20, either outward or inward asoceasion may require. Q N i It is to be understood that A,when the partshave been so moved that the equalizer 28 comes in contact ywith theabutment 33 thereon and part of the weight of the beams is carried bythe rods and part bythe springs, the force required to bring thespringsV into action is practically doubled. but this' force isyautomatically overcome when the obstruction l'is passed and the extraforce by the operator is removed.

llt)

ln lase the memberI 2O is pivotedly mounted it serves as an equalizerand allows ot independent aetionoi' eaeh side or beam; the operation andresult, however, is substantially the same as when the member E20 is notmounted for oscillation.

Modifications in detail, proportions, and relative arrangement of parts,may be resorted to 'without departing romthe spirit oi' the invention orsacriiieing anyo't' its advantages. What is elaimed as new is:

l. In a eultivator, pivoted beams, resilient means, pivoted meanscarried by the beams and with which said resilient means are connected,and an equalizer' pivoted `on the frame oi the eultivator andcooperating with said pivoted member, and a rod loosely movable throughthel rear end of the equalizer, the said beams` being depressible beyondthe normal depth by torce applied by the operator when an obstruction ismet.

2. In a cultivator, a pivoted beam, and a pivoted member oarriedthereby,a spring oonneeted with the'f pivoted member' upon one side ol itspivot, and amember having loose Connection with .the pivoted member uponthe other side of the pivot, and an abutment on the lower end of thelast mentioned member to limit independent move; ment thereof.

3. In a eultivator, a pivoted plow beam, a pivoted member thereon, andresilient means Connected with one end of the pivoted member, and amember substantially parallel with the spring and having limited looseConnection with the pivoted member.

t. llin a eultivator, a pivoted beam, an oseillatory member Carriedthereby, a spring eonneeted with the said member upon one side of itspivot, a rod having limited 'sliding connection with the pivoted membernpon the other side ot its pivot, and a transverse member connected tosaid spring and rod` supported from a point above said pivoted memberand vertically adjustable. y

5. ln a enltivator, a. pivoted beam, an oseil latory. member carriedthereby, a spring eon neeted with the said member upon one side of itspivot, a rod havinglimited sliding connection with the `pivoted memberupon the other side ot its pivot, and a transverse member connected tosaid spring and rod supported from a point above said pivotedV memberand vertically adjustable, said 6. In a eultivator, a transverse member`mounted upon the tongue, means for vary ing the height thereof,pivotedly mounted bea-ms, an equalizer carried by eaeh beam,

and a spring connected with said transverse member, and -a rod carriedby each end of said transverseinember, eaeh having eonneetion with anequalizer upon opposite` sides of its pivot.

7. In a cultivator, a cross member mounted upon the tongue, means. forvarying the height thereof, aivotedly mounted beams, an

equalizer carried by each beam, and a spring,

and a rod carried by each end of said transverse member, each havingConnection with an equalizer upon opposite sides of its pivot, saidtransverse member having a plurality o'il notches ior adjustment o'ttheconneetions ot said springs and rods therewith.

. 8. ln a cultiva-tor, a pivoted beam, a'een trally-disposed pivoted imember carried thereby, a spring Connected with the pivoted membernponone side otits pivot, and

a member extending substantially parallel with said spring and havingloose eonneetion with the pivoted member upon the other side ot thepivotthereof. y

9. In a eultivator, a pivoted beam, a pivoted member thereon, resilientmeans conneeted with one end of the pivoted member, j

a member substantially parallel with said resilient means and havinglimited loose connection with the pivoted member, and a stop carried bythe pivoted member upon one side of its pivot. l y

10. Ina eultivator, a pivoted beam, an oscillatory member carriedthereby, a spring connected with the said member upon one side of itspivot, and a rod having limited sliding connection with thepivotedmember upon the other side-ot' its pivot.

In testimony whereof I attix my signature.

HENRY Parnassia.

